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DC/DC supports TI's newest 3GHz DSPs

Posted: 12 Dec 2006 ?? ?Print Version ?Bookmark and Share

Keywords:non-isolated power module? DC/DC? DSP? Texas Instruments? power management?

PTH08T240F power module from TI

Texas Instruments (TI) said its PTH08T240F 10A (non-isolated) power module has the required transient response characteristics to meet the 3 percent accuracy core voltage tolerance spec of TI's newest 3GHz DSPs, such as the TMS320TCI6487, with just 3,000mF of external output capacitance.

The device, working from a 4.5-14V input and with an adjustable output from 0.7-2V, also supports POL systems that use high-performance DSPs, microprocessors, ASICs and FPGAs.

This module, said TI, is the first to meet the core voltage tolerance requirements of TI's new TCI6487 DSP, which requires a core voltage rail between 0.9V and 1.1V with a source impedance of 2 milliohms. The regulator meets the TCI6487's voltage tolerance requirement of 15mV for transient loads of up to 5A. More specifically, the chip incorporates TurboTrans technology for optimizing the power module's transient response and reducing the amount of output capacitance by up to eight times. The technology, according to TI, significantly reduces the peak output voltage deviation under transient load conditions, while saving the customer the cost and board space for additional capacitors.

The device's SmartSync technology allows for switching frequency synchronization of multiple modules, thereby simplifying EMI noise suppression tasks and reducing input capacitor ripple current requirements. The PTH08T240F also includes Auto-Track sequencing, which simplifies simultaneous power-up and power-down of multiple power modules in the system.

The chip also features over-current protection and programmable under-voltage lockout. In addition, the PTH08T240F offers over-temperature protection, on/off inhibit control, differential remote sense and an output regulation of 1.5 percent.

The PTH08T240F is sampling today and is scheduled to be available in volume production in early 2007 from TI and its authorized distributors. The module comes in surface-mount and through-hole packages. Suggested retail pricing is $11.80 each in 1,000-piece quantities.

- Vince Biancomano

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Related Datasheets
Part Number Description Category
? PTH08T240F 10-A, 4.5-V to 14-V Input, Power Module (Rev. B) ICs, Interface



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